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Proceedings Paper

Nondestructive testing of subsurface defects measurement by photothermal tomographic imaging
Author(s): Shaoqun Zeng; Haifeng Xu; Xiande Liu; Qingming Luo; Dinghe Shi; Dading Chang; Zaiguang Li
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Paper Abstract

Photothermal tomographic imaging is investigated in this paper. A new reconstruction model is proposed according to the thermal wave physics and our experiment setup. It was observed that the position and shape of the subsurface defects are more accurately reproduced in this method of reconstruction. Defects overlapped in depth direction is also resolved.

Paper Details

Date Published: 5 August 1994
PDF: 4 pages
Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); doi: 10.1117/12.182161
Show Author Affiliations
Shaoqun Zeng, Huazhong Univ. of Science and Technology (China)
Haifeng Xu, Huazhong Univ. of Science and Technology (China)
Xiande Liu, Huazhong Univ. of Science and Technology (China)
Qingming Luo, Huazhong Univ. of Science and Technology (China)
Dinghe Shi, Huazhong Univ. of Science and Technology (China)
Dading Chang, Huazhong Univ. of Science and Technology (China)
Zaiguang Li, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 2321:
Second International Conference on Optoelectronic Science and Engineering '94

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